Drilldown: Medicines

None (3) · Cyclobenzaprine (1) · Meclizine (1) · Vardenafil (1)

Antivert (Rx), Bonine (OTC), Dramamine Less Drowsy (OTC) (1) · Belsomra (1) · Dayvigo (1) · Flexeril (IR; brand discontinued in US, generic widely available), Amrix (ER) (1) · Levitra, Staxyn (1) · Quviviq (1)

Dual orexin receptor antagonist (DORA) (3) · PDE5 Inhibitor (1) · the first approved (1) · [[:Category:Antiemetics|Antiemetic]] (1) · [[:Category:Antihistamines|First-generation antihistamine (piperazine)]] (1) · [[:Category:Antivertigo medicines|Antivertigo medicine]] (1) · [[:Category:Skeletal muscle relaxants|Skeletal muscle relaxant (centrally-acting)]] (1) · [[:Category:Tricyclic-related compounds|Tricyclic-related compound]] (1)

None (2) · Competitive antagonist at OX1R and OX2R. Faster receptor association/dissociation kinetics than suvorexant (~16 sec dissociation vs ~57 sec) hypothesized to support sleep onset, with sufficient duration for maintenance. (1) · Competitive antagonist at OX1R and OX2R. First-in-class DORA. Receptor dissociation slower than lemborexant or daridorexant. (1) · Selective inhibitor of PDE5. Slightly higher PDE5/PDE6 selectivity vs sildenafil (less visual side effect) but more PDE1 cross-activity (occasional QT effects at high doses). (1) · '"`UNIQ--vote-00000013-QINU`"' Anticholinergic burden (dry mouth, blurred vision, urinary retention, cognitive effects) is the principal adverse-event concern and the basis for Beers-list cautions in elderly patients'"`UNIQ--ref-00000014-QINU`"'. (1)

Insomnia (sleep onset and/or maintenance) in adults (FDA-approved August 2014). Also studied for insomnia in mild-moderate Alzheimer disease. (1) · Insomnia (sleep onset and/or maintenance) in adults (FDA-approved Dec 2019) (1) · Insomnia (sleep onset and/or sleep maintenance) in adults (FDA-approved Jan 2022) (1) · '"`UNIQ--vote-00000015-QINU`"', '"`UNIQ--vote-00000016-QINU`"', '"`UNIQ--vote-00000017-QINU`"' (1) · '"`UNIQ--vote-00000017-QINU`"', '"`UNIQ--vote-00000018-QINU`"', '"`UNIQ--vote-00000019-QINU`"' (1) · '"`UNIQ--vote-00000669-QINU`"' (1)

10 mg PO 30 min before bedtime (with ≥7 hours of sleep planned) (1) · 10 mg ~1 h before sexual activity (1) · 25 mg PO at bedtime (no titration); may increase to 50 mg if 25 mg inadequate (1) · 5 mg PO at bedtime; may increase to 10 mg if inadequate (1) · IR 5 mg PO TID; titrate to 10 mg TID if needed. Amrix ER 15 mg PO once daily. Off-label insomnia / fibromyalgia: 5-10 mg PO at bedtime (1) · Motion sickness: 25-50 mg PO 1 hour before travel, repeat every 24 hours as needed. Vertigo: 25-100 mg/day divided (1)

2.5, 5, 10, 20 mg tabs (Levitra); 10 mg ODT (Staxyn) (1) · 25 mg, 50 mg tablets (1) · 5 mg, 10 mg tablets (1) · 5 mg, 10 mg, 15 mg, 20 mg tablets (1) · IR tablets 5, 7.5, 10 mg; Amrix ER capsules 15, 30 mg (1) · Tablets 12.5, 25 mg; chewable tablets 25 mg (1)

10 mg/d (1) · 100 mg/day (vertigo) (1) · 20 mg/d (2) · 30 mg/day (IR or ER) (1) · 50 mg/d (1)

None · Oral · IV · topical · IM · intranasal · rectal · Subcutaneous · topical ophthalmic · ophthalmic · intramuscular · intravenous · transdermal · vaginal · Subcutaneous (abdomen · sublingual · thigh · Inhaled · SC · intra-articular

Other values:

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None · Hours · 30-60 minutes · 1-2 hours · ~30 min · LDL lowering at 2 weeks, max by 4 weeks · ~1 hour · 15-30 minutes · 15–30 min · 1–2 h · 30–60 min · Antidepressant effect emerges over 1-2 weeks · BP and symptomatic LUTS improvement within 1-2 weeks · BP effect within 1-2 weeks · Clinical improvement within 24-72 hours · Days · Motor improvement over days at therapeutic dose · Over weeks · Postprandial glucose effect within days; HbA1c by 12 weeks · Sleep effect from first dose; antidepressant effect over 1-4 weeks

Other values:

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12-24 hours (IR); 24 hours (Amrix ER) (1) · 12-24 hours (long for an antihistamine) (1) · 4–5 h (1) · ~7-8 hours (3)

18 hours (IR); 32-33 hours (ER)'"`UNIQ--ref-0000001A-QINU`"' (1) · 4–5 h (1) · ~12 hours (1) · ~17-19 hours (longer than daridorexant) (1) · ~6 hours'"`UNIQ--ref-00000018-QINU`"' (1) · ~8 hours (shorter than suvorexant and lemborexant) (1)

~15% (extensive hepatic first-pass) (1) · ~25% (oral)'"`UNIQ--ref-00000019-QINU`"' (1) · ~33-55% (IR); reduced by food'"`UNIQ--ref-0000001B-QINU`"' (1) · ~44% (1) · ~62% (1) · ~82% (1)

Category B (1) · Limited data; avoid (3) · Limited human data.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1) · Older agent with substantial use experience; observational signals reassuring for first-trimester exposure.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1)

Rx, Schedule IV (US) (3) · Rx-only in US (1) · [[USLegal:Over-the-counter|OTC]] as Bonine and Dramamine Less Drowsy; [[USLegal:Prescription only|Rx-only]] as Antivert (1) · [[USLegal:Prescription only|Rx-only]] in US. Not a controlled substance, distinguishing it from the carisoprodol alternative for muscle spasm'"`UNIQ--ref-0000001C-QINU`"' (1)